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SierraSil is a unique mineral complex sourced from a deposit in the Sierra Mountains, primarily composed of altered volcanic tuffaceous rock containing montmorillonite, jarosite, hematite, quartz, and feldspars. It is marketed as a dietary supplement for joint health and inflammation, with clinical evidence supporting temporary relief of pain associated with osteoarthritis and improvement in physical function[1][2][5]. The mineral complex is proposed to moderate inflammation, reduce cartilage breakdown, and may exert detoxifying effects by lowering blood lead levels[1]. SierraSil is not a pharmaceutical and its mechanism is through moderation of inflammatory processes and downregulation of cartilage degrading enzymes[1][4]. SierraSil Health Inc. developed and manufactures SierraSil.
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